Tooth extraction wound protection plate
By designing a tooth extraction wound guard, the problems of unstable hemostasis and easy falling off of existing materials are solved, stable hemostasis is achieved, the risk of infection is reduced, and the care experience and healing effect of patients after tooth extraction surgery are improved.
Patent Information
- Application Number
- CN202422263445.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-09-14
AI Technical Summary
Existing tooth extraction wound management materials have problems such as unstable hemostatic effect, easy falling off, and delayed healing. It is difficult to effectively stop bleeding, especially in the elderly and frail, children or patients under general anesthesia, and the tooth extraction socket is prone to infection and foreign body accumulation.
A tooth extraction wound guard is designed, including a guard body and wings. The wings are used to clamp the buccal and lingual gums of the alveolar socket, and the fixed part clamps the adjacent teeth. It has a drug delivery hole and is made of resin material through 3D printing. It can physically shield and protect, compress and stop bleeding, and can replenish drugs through the drug delivery hole.
It effectively reduces the risk of hemostasis failure and infection in the extraction socket, continuously isolates and protects the wound, improves patient experience, simplifies the nursing process, and patients do not need to visit the doctor again. The device can be removed by themselves after the wound is completely healed.
Smart Images

Figure CN223323622U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oral medicine, in particular to a tooth extraction wound guard. Background Art
[0002] Tooth extraction is the most basic treatment in oral surgery. Wound exposure, bleeding, and pain are the most common complications after tooth extraction, which bring pain to many patients. The current conventional clinical method of hemostasis is for patients to bite a cotton swab to apply pressure to stop bleeding. For elderly and frail patients, loose bites and displacement of the cotton swab often occur. For children, patients undergoing tooth extraction under general anesthesia or sedation, and other patients with special conditions, it is difficult to achieve the purpose of hemostasis by biting. In addition, most patients have poor oral care after surgery, especially for mandibular posterior teeth. Deep and large extraction sockets often lead to accumulation of foreign matter, causing discomfort or complications such as dry socket. Extraction sockets adjacent to important anatomical structures may also communicate with the neural canal, causing nerve damage.
[0003] To prevent and treat possible complications after tooth extraction, appropriate covering or filling materials must be used to manage the extraction wound. With the continuous advancement of materials science, a wide variety of materials are now available for clinical application. These materials can be categorized by purpose as hemostatic, analgesic, and barrier materials, including polymer expansion materials, collagen plugs, and biofilms. Proper application can protect and isolate the extraction socket, compressing the bone wall, and playing a crucial role in wound management after tooth extraction.
[0004] Current wound management materials present several challenges. While non-absorbable materials such as iodoform gauze offer strong plasticity and excellent compression, they are irritating, requiring secondary removal and delaying socket healing. They are gradually being replaced by absorbable materials. Absorbable materials also have poor strength and are prone to detachment. Their effectiveness is unstable when wounds bleed excessively, often requiring sutures and requiring additional patient visits for suture removal. While collagen-based bandages, which provide a covering effect, can be combined with hemostatic packing materials to seal the extraction socket and stabilize the packing, their effectiveness is short-lived, dissolving within 24 hours. Utility Model Content
[0005] The utility model provides a tooth extraction wound protection plate, which is used to solve the problems in the prior art of wound exposure after tooth extraction and poor healing and hemostasis effects of the tooth extraction socket.
[0006] The utility model provides a tooth extraction wound guard plate, comprising:
[0007] A guard plate body, the guard plate body is used to block the alveolar socket, and wings are provided on both sides of the guard plate body, the wings extend toward the side of the guard plate body toward the alveolar socket, one wing is used to be clamped on the buccal gum of the alveolar socket, and the other wing is used to be clamped on the lingual gum of the alveolar socket.
[0008] According to an embodiment of the present invention, a tooth extraction wound guard plate is provided, wherein the guard plate body is recessed toward the alveolar socket, so as to form a convex surface that fits the alveolar socket on the side of the guard plate body facing the alveolar socket.
[0009] According to an embodiment of the present invention, a tooth extraction wound guard plate is provided, wherein the first end of the guard plate body has a first concave surface adapted to the shape of the adjacent teeth on one side of the alveolar socket, and the second end of the guard plate body has a second concave surface adapted to the shape of the adjacent teeth on the other side of the alveolar socket.
[0010] According to a tooth extraction wound guard provided by an embodiment of the present invention, fixing parts are provided at both ends of the wing, and a clamping space for accommodating the adjacent teeth is formed between the two fixing parts located at the same end of the guard body.
[0011] According to a tooth extraction wound protection plate provided by an embodiment of the present invention, the two fixing parts of the wing part located on the buccal side are clamped on the adjacent teeth and the buccal gums corresponding to the adjacent teeth, and the two fixing parts of the wing part located on the lingual side are clamped on the adjacent teeth and the lingual gums corresponding to the adjacent teeth.
[0012] According to a tooth extraction wound protection plate provided by an embodiment of the present invention, a convex portion is provided on the side of the fixing portion facing the adjacent tooth, and the convex portion is used to be embedded in the undercut of the adjacent tooth.
[0013] According to an embodiment of the present invention, a tooth extraction wound guard plate is provided, wherein the guard plate body is provided with a drug delivery hole.
[0014] According to a tooth extraction wound protection plate provided in an embodiment of the present invention, the diameter of the drug delivery hole is 0.6-1 mm.
[0015] According to an embodiment of the present invention, a tooth extraction wound guard plate is provided, wherein the guard plate body is made of resin material.
[0016] According to an embodiment of the present invention, a tooth extraction wound guard plate is provided, wherein the thickness of the guard plate body is 1-2 mm.
[0017] The tooth extraction wound guard provided by the present invention can provide physical shielding protection and compressive hemostasis. Hemostatic packing materials can be placed at the bottom, and medication can be supplemented through the drug delivery port. The use of this device facilitates the healing of the extraction socket, reducing the risk of complications such as hemostasis failure, infection, and dry socket. Furthermore, the wound is continuously isolated and protected during postoperative feeding and oral hygiene care, significantly improving the patient's post-extraction experience. Patients generally do not need to return to the doctor; once the extraction wound is completely healed, the guard can be removed. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1 This is one of the three-dimensional structural schematic diagrams of the tooth extraction wound guard provided by the embodiment of the present utility model.
[0020] Figure 2 This is the second three-dimensional structural schematic diagram of the tooth extraction wound guard provided by the embodiment of the present utility model.
[0021] Figure 3 This is one of the schematic diagrams of the use principle of the tooth extraction wound guard provided by the embodiment of the present utility model.
[0022] Figure 4 This is the second schematic diagram of the use principle of the tooth extraction wound guard provided by the embodiment of the present utility model.
[0023] Figure numerals: 10, guard plate body; 11, wing; 12, first concave surface; 13, second concave surface; 14, fixing part; 15, clamping space; 16, medication hole; 17, adjacent tooth. DETAILED DESCRIPTION
[0024] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.
[0026] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.
[0027] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.
[0028] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.
[0029] The following combination Figures 1-4 The specific structure of the tooth extraction wound guard plate according to the embodiment of the present invention is described.
[0030] Figure 1 One of the three-dimensional structural diagrams of the tooth extraction wound guard provided by the embodiment of the utility model is illustrated. Figure 2 The second schematic diagram of the three-dimensional structure of the tooth extraction wound guard provided by the embodiment of the present invention is illustrated as follows: Figure 1 and Figure 2 As shown, the tooth extraction wound guard plate includes a guard plate body 10, which is used to seal the alveolar socket. Wings 11 are provided on both sides of the guard plate body 10, and the wing 11 extends toward one side of the guard plate body 10 toward the alveolar socket. The two wings 11 and the guard plate body 10 form a groove-shaped structure. One wing 11 is used to be clamped on the buccal gum of the alveolar socket, and the other wing 11 is used to be clamped on the lingual gum of the alveolar socket.
[0031] The tooth extraction wound guard provided by the present invention provides physical shielding and hemostasis, allowing for the placement of hemostatic packing materials at the base, and medication delivery through the drug delivery port 16. This device facilitates healing of the extraction socket, reducing the risk of complications such as hemostasis failure, infection, and dry socket. Furthermore, it provides continuous isolation and protection of the wound during postoperative feeding and oral hygiene, significantly improving the patient's post-extraction experience. Patients generally do not need to return to the doctor; the guard can be removed once the extraction wound is fully healed.
[0032] In one embodiment of the present invention, the guard body 10 is a sheet-like structure, with both the side of the guard body 10 facing the alveolar socket and the side of the guard body 10 facing away from the alveolar socket being non-planar. The wings 11 are integrally formed with the guard body 10, with the surfaces of the wings 11 and the guard body 10 connected by a smooth transition to enhance the comfort of the guard against tooth extraction wounds.
[0033] In one embodiment of the present invention, the guard plate body 10 is recessed toward the alveolar socket to form a convex surface that fits the alveolar socket on the side of the guard plate body 10 facing the alveolar socket. The shape of the convex surface is adapted to the shape of the alveolar socket to ensure that the side of the guard plate body 10 facing the alveolar socket is tightly fitted with the edge of the alveolar socket, thereby giving full play to the physical shielding protection and compression hemostasis effect of the tooth extraction wound guard plate.
[0034] In one embodiment of the present invention, the first end of the guard body 10 has a first concave surface 12 adapted to the shape of the adjacent tooth 17 on one side of the alveolar socket, and the second end of the guard body 10 has a second concave surface 13 adapted to the shape of the adjacent tooth 17 on the other side of the alveolar socket. Figure 3 As shown, the first end of the guard plate body 10 has a first concave surface 12 that is adapted to the shape of the adjacent tooth 17 above the alveolar socket, and the second end of the guard plate body 10 has a second concave surface 13 that is adapted to the shape of the adjacent tooth 17 below the alveolar socket. By arranging concave surfaces at both ends of the guard plate body 10, the concave surfaces can ensure that the guard plate body 10 fits tightly with the adjacent teeth 17, thereby improving the stability of the tooth extraction wound guard plate after installation.
[0035] In one embodiment of the present invention, a fixing portion 14 is provided at both ends of the wing portion 11. The fixing portion 14 is a sheet-like structure and is integrally formed with the wing portion 11. A clamping space 15 for accommodating adjacent teeth 17 is formed between the two fixing portions 14 at the same end of the guard plate body 10. Figure 3As shown, a clamping space 15 is formed between the two fixing portions 14 at the upper end of the guard body 10. This clamping space 15 is used to clamp the adjacent tooth 17 above the alveolar socket. A clamping space 15 is formed between the two fixing portions 14 at the lower end of the guard body 10. This clamping space 15 is used to clamp the adjacent tooth 17 below the alveolar socket. By providing fixing portions 14 at both ends of the wing portion 11 and using the two opposing fixing portions 14 to clamp the adjacent tooth 17, the tooth extraction wound guard is fixed and effectively improved in stability.
[0036] In one embodiment of the present invention, the width of the fixing portion 14 is greater than the width of the wing portion 11. The greater the width of the wing portion 11, the greater the contact area between the fixing portion 14 and the adjacent tooth 17, and the higher the stability of the tooth extraction wound guard after it is installed in place.
[0037] In one embodiment of the present invention, the two fixing portions 14 of the wing portion 11 on the buccal side are clamped on the adjacent teeth 17 and the buccal gums corresponding to the adjacent teeth 17. Specifically, Figure 4 As shown, the upper portions of the two fixing portions 14 on the buccal side contact the adjacent teeth 17, while the lower portions contact the buccal gum below the adjacent teeth 17. The two fixing portions 14 of the wing portion 11 on the lingual side are clamped between the adjacent teeth 17 and the lingual gum corresponding to the adjacent teeth 17. Similarly, the upper portions of the two fixing portions 14 on the lingual side contact the adjacent teeth 17, while the lower portions contact the lingual gum below the adjacent teeth 17. Since the tooth extraction wound guard plate is limited in the length direction by two adjacent teeth 17 and in the width direction by two fixing portions 14, the tooth extraction wound guard plate is limited in multiple directions, thereby effectively improving its stability after installation.
[0038] In one embodiment of the present invention, a protrusion (not shown) is provided on the side of the fixing portion 14 facing the adjacent tooth 17. The protrusion is adapted to be embedded in the undercut of the adjacent tooth 17. By embedding the protrusion in the undercut of the adjacent tooth 17, the fixing portion 14 and the adjacent tooth 17 can be more closely fitted, further improving the stability of the tooth extraction wound guard after installation.
[0039] In one embodiment of the present invention, Figure 3 This is a schematic diagram illustrating the principle of use of the tooth extraction wound guard provided by the embodiment of the utility model. Figure 4 The second schematic diagram of the use principle of the tooth extraction wound guard provided by the embodiment of the utility model is illustrated as follows: Figure 3 and Figure 4As shown, the guard body 10 is provided with a drug delivery hole 16. After the tooth extraction wound guard is installed, medication can be replenished through the drug delivery hole 16. The diameter of the drug delivery hole 16 is larger than the diameter of the syringe needle, and the diameter of the drug delivery hole 16 is 0.6-1 mm. The diameter of the drug delivery hole 16 is determined by the diameter of the syringe needle. The diameter of the drug delivery hole 16 is larger than the diameter of the needle to facilitate the use of a syringe to inject medication through the drug delivery hole 16.
[0040] In one embodiment of the present invention, the material of the guard plate body 10 is a resin material, and the guard plate body 10 made of a digital material can be manufactured through 3D printing technology.
[0041] In one embodiment of the present invention, the thickness of the guard plate body 10 is 1-2 mm, and the specific thickness of the guard plate body 10 is determined according to actual needs.
[0042] In one embodiment of the present invention, a flexible membrane (not shown) is disposed within medication hole 16 and is adhesively bonded to the sidewalls of medication hole 16. The flexible membrane is composed of at least two flaps, with a gap between adjacent flaps to allow a needle to pass through the membrane. When the needle passes through the flexible membrane, the gap between the adjacent flaps widens. When the needle is removed, the gap between the adjacent flaps narrows, thereby sealing medication hole 16 and preventing external bacteria or food debris from entering medication hole 16.
[0043] In one embodiment of the present invention, a hemostatic packing material is provided on the side of the guard plate body 10 facing the alveolar socket. When the tooth extraction wound guard plate is installed in place, the hemostatic packing material is in the alveolar socket.
[0044] The present invention also provides a digital design and production method for a tooth extraction wound guard, comprising:
[0045] Step S100, using an intraoral scanner to scan the patient's oral cavity before tooth extraction to obtain the patient's initial dentition digital model 10;
[0046] Step S200: Perform a virtual tooth extraction on the digital model of the patient's initial dentition. Select and separate the tooth portion to be extracted along the gingival margin to obtain a digital model of the tooth to be extracted. Fill the hole corresponding to the extraction socket according to the curvature on the digital model of the initial dentition after virtual extraction. Sculpt and smooth the shape of the extraction socket to obtain a digital model of the dentition after extraction.
[0047] Step S300, using observation software to observe undercuts on the digital model of the extracted dentition, using the software's undercut filling function to eliminate undercuts on the adjacent teeth near the gap between the two sides, and retaining undercuts on the buccal and lingual sides of the adjacent teeth on both sides of the tooth to be extracted for retention, thereby obtaining a working model of the extracted dentition;
[0048] Step S400: Select an area corresponding to the extraction socket, offset it toward the root, and copy the extraction socket, the adjacent teeth on both sides of the toothless space, and the occlusal surface area at a predetermined distance from the gingival margin on the mucosal surface. Then, perform shell extraction, carving, and rapid smoothing operations on the copied area model to obtain a preliminary model of the extraction wound drug administration guide; and / or generate a drug administration hole 3 in the preliminary model 30 of the extraction wound drug administration guide to obtain a final model 40 of the extraction wound drug administration guide;
[0049] Step S500: At a position where the gums of the posterior dentition working model are at a predetermined distance from the gingival margin, the area corresponding to the extraction socket, the adjacent surfaces of the adjacent teeth on both sides near the missing tooth, and the buccal and lingual surfaces are selected for copying, and the copied area models are subjected to shelling, carving, and rapid smoothing operations to obtain a tooth extraction wound guard model; and / or, for the anterior teeth area or patients with aesthetic requirements, the tooth extraction wound guard model can be subjected to an additive Boolean operation with the digital model of the tooth to be extracted; the occlusal surface of the tooth to be extracted is selected and offset, carved, and smoothed toward the root to avoid contact with the opposing teeth, thereby obtaining a preliminary model of the immediate denture;
[0050] Step S600, using 3D printing technology to print the final model of the tooth extraction wound medication guide, the tooth extraction wound guard plate model and / or the initial model of the immediate denture, respectively, to obtain the medication guide, the tooth extraction wound guard plate and / or the immediate denture;
[0051] Step S700, trial fitting and adjusting the medication guide, the tooth extraction wound guard or the immediate denture;
[0052] Step S800: Post-processing the extraction wound plate or the immediate denture to improve its comfort. Post-processing includes, but is not limited to, grinding and polishing the plate. This grinding and polishing process smoothes the surface of the plate, ensuring greater comfort for the patient. The extraction wound plate is made of resin, though other materials with the same functionality may also be used.
[0053] After the wound plate is prepared, it is worn to determine its fit. Based on the fit, the shape of the plate is adjusted to perfectly match the shape of the patient's oral cavity. After the shape of the plate is adjusted, hemostatic, analgesic, covering, or extraction socket filling material is injected through the injection port to meet post-extraction wound protection needs. Extraction socket filling materials can include polymer expansion materials, chitosan, or other substances.
[0054] In one embodiment of the present invention, after the filling material is set, the doctor guides the patient to learn how to remove and wear the tooth extraction wound guard and clean it; it is recommended to wear the tooth extraction wound guard in turn for about 1-2 weeks and clean it 2-3 times a day; after the wound is completely healed, the patient can remove the tooth extraction wound guard by himself.
[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A tooth extraction wound guard, characterized in that: include: A guard plate body (10) is used to block the alveolar socket, and wings (11) are provided on both sides of the guard plate body (10), and the wings (11) extend toward one side of the guard plate body (10) toward the alveolar socket, one wing (11) is used to be clamped on the buccal gum of the alveolar socket, and the other wing (11) is used to be clamped on the lingual gum of the alveolar socket.
2. The tooth extraction wound guard according to claim 1, characterized in that The guard plate body (10) is recessed toward the alveolar socket, so as to form a convex surface that fits the alveolar socket on the side of the guard plate body (10) facing the alveolar socket.
3. The tooth extraction wound guard according to claim 1, characterized in that The first end of the guard plate body (10) has a first concave surface (12) adapted to the shape of the adjacent tooth (17) on one side of the alveolar socket, and the second end of the guard plate body (10) has a second concave surface (13) adapted to the shape of the adjacent tooth (17) on the other side of the alveolar socket.
4. The tooth extraction wound guard according to claim 3, characterized in that: Both ends of the wing portion (11) are provided with a fixing portion (14), and a clamping space (15) for accommodating the adjacent tooth (17) is formed between the two fixing portions (14) located at the same end of the guard plate body (10).
5. The tooth extraction wound guard according to claim 4, characterized in that: The two fixing portions (14) of the wing portion (11) located on the buccal side are clamped between the adjacent tooth (17) and the buccal gum corresponding to the adjacent tooth (17), and the two fixing portions (14) of the wing portion (11) located on the lingual side are clamped between the adjacent tooth (17) and the lingual gum corresponding to the adjacent tooth (17).
6. The tooth extraction wound guard according to claim 4 or 5, characterized in that: A convex portion is provided on the side of the fixing portion (14) facing the adjacent tooth (17), and the convex portion is used to be embedded in the undercut of the adjacent tooth (17).
7. The tooth extraction wound guard according to any one of claims 1 to 5, characterized in that: The guard plate body (10) is provided with a drug delivery hole (16).
8. The tooth extraction wound guard according to claim 7, characterized in that: The diameter of the drug delivery hole (16) is 0.6-1 mm.
9. The tooth extraction wound protector according to any one of claims 1 to 5, characterized in that: The material of the guard plate main body (10) is resin material.
10. The tooth extraction wound protector according to any one of claims 1 to 5, characterized in that: The thickness of the guard plate body (10) is 1-2 mm.